burchenal



I Patented Aug. 15, 1916.

3 SHEETS-SHEET I.

l i l y (1.11. BURCHENI.

FILTER-I APPLICATION IIILED` MAR. l0l 1916.

Patented Aug. 15, 1916.

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` FILTER. Y, APPucATlpN FILED MAR. m. 191s.

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the plates and its filteringl media, the section CHARLES D. BURCHENAL, OF NEW YORK, N. Y.

FILTER.

Specification of Letters Patent.

ratentea'aug. 15, 191e.

Application filed March`10, 1916. Serial No. 83,280. j

To all whom it' may concern,"

Be it known that I, CHARLES resident of the city of New York, borough of Manhattan, in the county ,and State of ew York, have invented a new and Imypnoved F ilter, of which the `following is a full',.clear, and exact description.

The invention relates to`filter`s for filter, linggsugar cane juice and other liquids of'a -Another object is to ,permitr of properly.

washing the residue cake after the filtering operation is completed. l

In order to accomplish the desired result, use isy made of alternating cells and plates,

of which the cells are connected with a ,sup`

ply of the liquid to be filtered, and each plate is provided on both faces with ribs forming spaces leading to an outlet, and a filtering medium interposed between the successive cells and plates and formed of apiece of filtering cloth and a screen, the lattery resting on the ribs and the filtering cloth facing the corresponding cell.

- A practical embodiment of the' invention is represented in the accompanying drawings forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure 1 is a side elevation ofthe filter; Fi'g.- 2 is a plan view of thesame with parts in section; Fig. 3 is an elevation of the outer end ofthe filter; Fig. 4 is a cross section of the hydraulic ram for the filter, the section lbeing on the line 4-4 of Fig. 1; Fig. 5 is a cross section of the filter.` on the line 5-5 of Fig. 1; Fig. 6 is a similar View of the same on they line 6-6 of Fig. 1 Fig. 7 is an en-` larged sectional side elevation of a View of the alternating cells, plates' and filtering media; Fig. 8 isy a cross section of the same ony the line 8-8 ofFig.`7;`Fig. 9 is a similar view of the same on the line 9-9 of Fig. 7;

Fig. 10 is asectional' plan view of one of D. Buitoni#` NAL, a citizen of the United States, and ar being. on the line 10--10 oft' Fig. 9; Fig. 11 is a similar View of the same on the line 11-11 of Fig. 9; and Fig.'12 is a face view ofa Y modified form ofone of the plates.

The filter ismounted on standards 10`and 11, of which the standard 10 supports a stationary filter head 12 connected at its sides by longitudinally extending guiding snpT ports 13 with the'other standard 11. The supportsk 13 support valternately arranged cells 14 and plates. 15, between which arearranged the filtering media, preferably in the l form of a filtering cloth 17 resting against a wovenwire screen, as hereinafter more fully explained. As shown in Figs. 1 and 2, the lastcell 14 at the rightdiand side of the filter rests against the head 12, and the'last cell 14 at the left-hand side of the filter is engaged by a head 18 slidableon the support 13 and controlled by a hydraulic ram 20 or other suitable means for holding the cells 14 and the plates firmly in assembled relation between the heads 12 and 18.

Each of the cells 14 (see Figs. 6, 7 and 8) t-is inthe'form of a rectangular frame, the

opening of which isfaced by the two filtering cloths 17 interposed between a cell and the next adjacent plate 15. The upper corners ofeach cell 14 are provided with .longitudinally extending inlet passages 26 and 27, each connectedby two inlets 28 and 29 with the chamber or opening 25`to fill the latter with the liquid to be filtered.` The lower corners of each cell 14 are provided withi longitudinally extending outlet passages 30 and 31. The sides of each cell 14 are provided with brackets 32 carrying frictionrollers 33 mounted to travelon the upper edges of the supports 13 to allow easy movement of each cell when assembling o disassembling the cells and plates.

' v Each of the plates 15 consists of a rectangular frame 40, similar in size and shape to the cell v14, and each plate 15 is provided with a web 41 intericrly connected with the sides, -top and bottom'of the frame 40. On

the faces of each web 41 are formed diagonal ribs 42, of which the ribs on one face run in anopposite direction tothe ribs on the,

The

other face, as indicated in Fig.

ribs 42 terminate at their lower ends a dis- One face j with a downwardly and outwardly inclined openingr @t3 leadingr to one side ot' the plate. and the other tace is similarly connected at the oppoaite aide by an opening l with the said other side of the plate, as will he read ilyv understood hy reference to Fig. The outer ends of the openings t3 and il are connected hy sight and valve eonnectionS l5 and 4G with openings -lT and 4S leading into outlet passages it) and formed longitudinally in the lower Corners of the plate 15. Each ot the connections l5 and ll is provided with a sight glass 52 and with e. Valve 5235 for connecting the correspomling face ot a plate with the corresponding passage il) or 50. The l'rassages Aill and 50 are in register with the passages 3() and 3l of the adjacentcells 14. 'Ihenpper corners ot' each plate l5 are, provided with longitinlinalljv' extending passages and in register with the passages 2li and :2T ot adjacent cells H. The screens 1li. overlie the rihs -li and are lastcned'thereto h v Suitable fastening devices 56 (eee lfig. ll) passing through apertures 5T in sundry ot' the rihs -l-' The rihs l2 are of such a depth and the screens 1G are ot such thickness that when the screens` are fastened in place tl ie outer faces thereotI are flush with thc faces ot the frame lll. aa will he readily understood hiv refe.- ence to llig. T. The filtering cloth 1T islot' a width correapoialing to that ot the frame lll and is of a length to allow of donhling up thc cloth to extend overthe top ot' the frame on lioth faces ofl a plate to the hottoni thcreol'. so that one piece ot' Aliltering cloth is onl v nccdcd for each single plate 15. as will he readily understood hv reference to Fig. T. The liltcring cloth is provided with apertures in register with the passages 5-1, 55. lll and 5t). The sides of the plates 15 arc provided with hracltets t3() carr \'ing triction rollers (il mounted to travel on the upper edges ot thc supports lil to allow easy traveling ol' the. plates 15 when as scmhling or disaasemhllng thc parts olI the lilter.

From the Jforegoing. it will hc s-:cen that hv the arrangement described. the passages 21'. 2T. lll and Ill of the cells 1l are in registcr with the passages 5l. 55` ll) and 5l) ol the plates 15. thus providing uninterrupted passages in the corners of thcy asseoihlcd cells and plates l-l and 15. .'l`he passages gli. 2T. :lo and ill ol' the last cell 1l on the lclthaud side ot' the machine are closed lrv thc head lh' and thc passages 2li. 12T, fill and Ill oll thc las( cell at the right-hand side ol' the machine connect with pipes Tl). Tl. T'. and TI screwed or otherwise secured in the head l2. 'l`he pipe T() connects with a supply pipe Tl (see Fig. Il). and the pi ie Tl connects` hv a la'anch pipe T5 with tie, suppl)V pipe Tl. and in this laranch pipe T5 is arranged a valvc, To and a vent coclc TT. Un lilliug the lillcr with the liquid to he filtered. the valve T6 is closed 4while the vent cock 'TT is opened so that the dells are readily lilled with the liquid h v way of the branch pipe T5 and the passages *26 and 54e While the air can escape hy waiv of the passages .T and 55. the pipe Tl and the vent cock 7i'. After the lilter is charged with the liquid the ventcock TT is; closed and the valve T6 preferably opened to allow ot' Supplying the filter with liquid through both sets of passages l. 5t and QT. rlhe pipes T2 and Til are connected with each other by a pipe T8 from which leadsai hranch pipe Tll connected with pipes; l) and 8l. of which the pipe lserves to contluet the liltrate to a suitable place ol. digalinge while the pipe S1 serves to discllia'rge the wash water t0 a suitahle placeo discharge. The pipes and til are provided with Suitable valves 852 and 83 to permit of making use of either ot' the pipes 80 or 81. as above explained. The pipe TS is provided with a valve 8l and. the pipe T25 connects with a pipe S5 provided with a valve SG, and this pipe tli may he connected with a steam or water supply for washing out the residue cake in the chambers :Z5 prior to removing said calce from the. ilter. as hereinafter more t'ullv explained. When the filter is in use, the liltrate passes. into the chambers of the cells 14. as ahove explained, and then filters through the liltering cloth 1T and the screens lll onto the cori-'esproi'iding faces of the plates 15 from which the filtrate passes h v wav ot' the openings i3 and ll to the connections l5, lo to linallv paas into the longitudinal passages ll), 5() in register with the passages il() and Ill to conduct the filtrate to the pipesl T1! and T3 from which the lil trate is discharged hiv wav ot the pipes T8, Tl) and all to a suitahle place of discharge. It is' understood that during ne use ofthe liltcr the vent cock TT cloned -ns woll aa the valves Si) and all while the valves TG, 82 and nl are opened. ld'hen it is desired to wash out the calte remaining in the chambers the valvcs H12 and Hl are closed and the valves Sil and l arc opened so that Steam or water can pass through the pipe T3 into the longitudinal passages Ill, 5l) to pass by thc connections lo and the openings All onto one l'ace ot' each liltcr plate l5 and through the corresponding acrwn llj and filtering cloth lT into the residue material contained in thel chamher 25. '.l`he wash water flows through the filter cloth 1T and the screen 16 on thc other face ot' the chamber 25 onto the corrcslmnding face ot the. plate 15 to then pass hy way ot' the openings $3 and oonncctiona l5 into the longitudinal passages Ilo. lll to the pipes T2. Ti) and Sl to he Carried h v the latter toa auitahle place of discharge. connecting hlock 9() mounted to swing on thc head 1H is mounted out of the path of the hydraulic. rain il() to allow of running the head 18 to the left with a view of moving the cells 14 and plates 15 apart forthe removal of the washed cakes and for the removal and cleaning of the filtering cloth 17.

The head 18 -is provided at each side with` wheels 91 and 92 mounted to travel on'the supports 13, and on the axles of the wheels 92 are mounted. hand wheels 93 to permit the operators to yconveniently move the head 18 along the supports 13.

Instead of arranging the outlets for each ,plate at the lower `corners the same may lie arranged at diagonally opposite corners, as plainly indicated in Fig. 12,' it being understood that the inlets are arranged onthe two other corners.

By providing the sight connections atl each side the operatorV can readily see the filtrate and according tothe observed condition can readily determine Whether Leach unit is acting properly. I y

if desired or necessary, any one facey of any plate can be disconnected from the corresponding outflow passage on closingy the valve in the corresponding sight and valve connection. Thus if a leak should occur in f any one filtering media it can be readily seen by the operator'at the sight glass and the corresponding lvalve closed to eliminate this face of .thi s filter plate without interfering with the actions of the opposite face of this same filter plate.' By locating the outflow passages within the filter and dispensclaim as new and desire toseeure by Letters ing entirely with open outlets or gutters, the filtrates are not lia le to be rendered impure by dust orf-other extraneous matter and the loss of heat by direct radiation into thek open air is entirely prevented.

By providing each plate with ribs on both faces theplate is greatly strengthened., thus allowing the useof lighter plates. As

the cells and plates are symmetrical they can be readily assembled. The plates are all alike and hence canfbe used interchangeably, and :is both faces of each plate arel alike, the l ate can be reversedly used.

Having thus described my invention, I

Patent:

LA filter, comprising alternatingcells and plates and filtering mediums between them, the cells and plates being provided with a longitudinal supply passage openinfr into all the cells, and the cells and plates being provided at opposite sides with longitudinal outlet passages, -each plate being connected at one face with the outletpassage on one side of thel filter and each plate having its other faceconnected with the outlet passage on the other side of the filter.

2. A filter, comprising alternatipg cells and plates and filtering mediums between them,.the cells and plates being provided with a longitudinal supply passage open-V ing into all the cells and the cells and plates "being provided at opposite sides withlongitudina-l outlet passages, each plate'being connected at one face with the outlet passage on one side of the filter, and each-plate having its other face "connected with the outlet passage on the other side ofthe filter,

fandla valve in each connection between a face of a. plate and the corresponding outlet passage to permit of closing such face tothe outlet passage.

A filter, comprising alternatingcells and plates and filtering mediums between them, the cells' and lplates being p'rovideigl lwith a. longitudinal supply passage opening into all the cells "andthe cells and plates beingprovided at 'oppositesides with longitud'fnaloutlet passages, andl exterior connections at opposite'sides of the filter and of which a connection-at one side of the fil- 4ter connectsl the outlet passage at this side of the filter lwith one, face of a corresponding plate, and a connection at the "otherside of the filter connects the outlet passage at I this other side of the filter with the .other face of the same plate. 4. A filter, comprising alternating cells 'and plates and filtering mediums between them, the cells and plates being provided with a longitudinal supply passage opening into all the cells and the cells and plates being provided at opposite sides with longitudinal outlet passages, and exterior connections at opposite sides of the filter and i of which a connection at one side of the filter connects the outlet passage at this side of the filter with one face' of a corresponding plate, and a connection at' the otlier'sidc otithe filter connects the outlet passage at this other side of' the filter with the other face of the same plate, each of the said/connections having a sight 'glass and a valve.

5. A filter provided with a plate having ribs on -both faces, longitudinally extending outlet passages formed in the plate at the sides thereof, and transversely extending outlet openings, of which one leads from one faceof the plate and is connected with the adjacent outlet passage and the other outlet opening leads from the other face of the plate and connects with the other outlet passage.

(L A filter, comprising alternating cells and plates and filtering mediums between them, the cells and plates being yprovided with a vlongitudinal supply passage opening into all the cells, and the cells and plates being provided with longitudinal outlet passages, each plateA having openings at opposite sides, of which one connects with one of the faces of a plate and the other connects with the other face of the same plate to receive the filtrate from both plate faces, and exteriorl connections on each plate connecting the said plate openings with the corresl'ionding outlet passages.

7. A filter, comprising alternating cells and plates and filtering mediums `between them, the cells'and plates being provided with a longitudinal supply passage opening into all the cells, and the cells and plates being provided with longitudinal outlet passages, each plate having openings at opposite sides, oi which one connects with one oi the faces of a plate and the other connects with the other face of the same plate to receive the filtrate from both plate faces, and exterior connections on each plate connecting the said plate openingsrvith the corresponding outlet passages, each of the said connections haring a sight glass ani a shutofl' valve.

8. A filter provided With a filtering unit,

comprising a plate provided iwith ribs on` both faces and haring openings for receiving the filtrate from the corresponding face, the plate haring passages and exterior conneetions connecting the said openings with the corresponding passages and including a sight glass and a sliutcll1 cock, and filtering media (nerlying the ribs on both faces loi' the plate.

9. A lilter provided with a. filtering plate haring a marginal frame, a central web and diagonal ribs on each face of the web, the ribs lying within the planes of the vfaces of the trarne, the ribs terminating at their lower ends :1 distance from the bottoni meniber of the frame, the web and frame having openings at opposite sides leading at their inner ends to the saidplate faces of the web at the bottoni member of the frame, and the said openings leading to the outside of the frame, passages in the salad plate at opposite sides, outside connectlons connecting the said openings `r:with the corresponding Athe interiorof each cell, the said cells and plates being provided at their lower corners with longitudinal outlet passages, of which one is in connection with one face of a plate and the other is in connection with the other face of the same plate.

1l. A filter, comprising alternating cells and plates and filtering mediums between the same, the said cells and plates being provided at their upper corners with longitudinal inlet passages each connected With the interior of each cell, the said cells and plates being provided at their lower corners with longitudinal outlet passages, each plate being provided at both faces with ribs for the filtering mediums to rest against, each plate haring downwardly and outwardly1 inclined openings at the lower corners, the opening at one side leading to one face of the plate and the other opening leading to the other face of the same plate, and eX- terior valve and sight connections connecting each opening with the corresponding outlet passage at the same corner.

In testimony whereof I have signed my naine to this specification in the presence of two subscribing Witnesses` CHARLES D. BURCHENAL. llvlitnesses Timo. G. Hoeren, Pnnar D. RoLLHAUs. 

